Timemashine did not save browser bookmarks

Hi all
I needed to uninstall mozilla firefox because of a bug which didn't allow me to use google as my search engine.
when I wanted to install from a older backup of timemashine I got the blank downloaded version of the time without any add-ons, bookmarks, etc!
To me it makes no sense to store only a downloadable version of a program without the changes I did to it.
Did I miss some thing or is this a known shortcomming of Timemashine.
My timemashine drive is a 2TB timecapsule and im running Mavericks on a MBA 2012
Any help wellcome!!

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